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Tetraphenylene anthracene compounds

a technology of tetraphenylene anthracene and compound, which is applied in the field of compounds for organic electronic devices, can solve the problems of short device lifetime, high operating voltage, and oled commercialization, and achieve the effect of improving device performan

Active Publication Date: 2021-12-14
BEIJING SUMMER SPROUT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]The present invention aims to provide a new series of tetraphenylene anthracene compounds to solve at least part of the above problems. The compounds can be used as charge transporting materials, hosts, emitters in an organic electroluminescent device. These novel compounds offer better device performance.
[0031]The novel tetraphenylene anthracene compounds disclosed in the present invention can be used as charge transporting materials, emitters, hosts in an organic electroluminescent device. These novel compounds offer better device performance.

Problems solved by technology

This limitation hindered the commercialization of OLED.
Blue phosphorescent emitters still suffer from non-saturated blue color, short device lifetime, and high operating voltage.
At present, efficiency roll-off of phosphorescent OLEDs at high brightness remains a problem.
However, their use in OLED materials has not been widely explored.

Method used

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Examples

Experimental program
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Effect test

synthesis example

[0106]The method for preparing the compounds of the present invention is not limited. The following compound is exemplified as a typical but non-limiting example, and its synthesis route and preparation method are as follows:

synthesis example 1

nd 11

[0107]Step 1

[0108]

[0109]9-bromoanthracene (20.0 g, 78.13 mmol), (4-(naphthalen-2-yl)phenyl)boronic acid (22.3 g, 93.15 mmol), potassium carbonate (21.5 g, 156.3 mmol) were added to a mixture of toluene (600 mL) and water (100 mL) to give a colorless suspension. Tetrakis(triphenylphosphine)palladium(0) (2.7 g, 3.9 mmol) was added to the reaction mixture, then the reaction mixture was degassed with nitrogen and heated to 110° C. for 24 hours. After the reaction was cooled down to room temperature, the product was extracted with dichloromethane. The organic phase was separated and collected. The solid was washed with dichloromethane and methanol to afford 9-(4-(naphthalen-2-yl)phenyl)anthracene (20.0 g, 67% yield) as a yellow solid.

[0110]Step 2

[0111]

[0112]9-(4-(naphthalen-2-yl)phenyl)anthracene (12.0 g, 31.5 mmol), N-bromosuccinimide (4.0 g, 9.3 mmol) were dissolved in dichloromethane (500 mL), then the reaction mixture was degassed with nitrogen and heated to 35° C. for 12 hours....

synthesis example 2

nd 13

[0116]Step 1

[0117]

[0118]9-bromoanthracene (20 g, 78.13 mmol), (3-(naphthalen-2-yl)phenyl)boronic acid (22.3 g, 93.2 mmol), potassium carbonate (21.5 g, 156.3 mmol) were added to a mixture of toluene (600 mL) and water (100 mL) to give a colorless suspension. tetrakis(triphenylphosphine)palladium(0) (2.7 g, 3.9 mmol) was added to the reaction mixture, then the reaction mixture was degassed with nitrogen and heated to 110° C. for 24 hours. After the reaction was cooled down to room temperature, the product was extracted with dichloromethane. The organic phase was separated and collected. The solid was washed with dichloromethane and methanol to afford 9-(3-(naphthalen-2-yl)phenyl)anthracene (18.0 g, 60% yield) as a yellow solid.

[0119]Step 2

[0120]

[0121]9-(3-(naphthalen-2-yl)phenyl)anthracene (12.0 g, 31.5 mmol), N-bromosuccinimide (4 g, 9.3 mmol) were dissolved in dichloromethane (1000 mL), then the reaction mixture was degassed with nitrogen and heated to 35° C. for 12 hours. Aft...

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Abstract

Novel tetraphenylene anthracene compounds are disclosed, which can be used as charge transporting materials, emitters, hosts in an organic electroluminescent device. These novel compounds offer better device performance. Also disclosed are an electroluminescent device and a formulation.

Description

[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 571,763, filed Oct. 12, 2017, the entire content of which is incorporated herein by reference.1 FIELD OF THE INVENTION[0002]The present invention relates to a compound for organic electronic devices, such as organic light emitting devices. More specifically, the present invention relates to tetraphenylene anthracene compounds, an organic electroluminescent device comprising the compounds and a formulation.2 BACKGROUND ART[0003]An organic electronic device is preferably selected from the group consisting of organic light-emitting diodes (OLEDs), organic field-effect transistors (O-FETs), organic light-emitting transistors (OLETs), organic photovoltaic devices (OPVs), dye-sensitized solar cells (DSSCs), organic optical detectors, organic photoreceptors, organic field-quench devices (OFQDs), light-emitting electrochemical cells (LECs), organic laser diodes and organic plasmon emitting devices.[0004]In 1987...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H01L51/50H01L51/00C07C13/62C09K11/06C07D491/04C07D487/04C07D251/24C07D307/91C07D235/08C07D471/04C07D495/04C07D209/58C07D401/04C07D333/50
CPCH01L51/0055C07C13/62C07D209/58C07D235/08C07D251/24C07D307/91C07D333/50C07D401/04C07D471/04C07D487/04C07D491/04C07D495/04C09K11/06H01L51/0058C07C2603/24C07C2603/40C07C2603/50C07C2603/52C09K2211/1007C09K2211/1011H01L51/5012H01L51/5056H01L51/5072C07C211/61C07D209/80C07D209/86C07D209/94C07D213/16C07D213/22C07D235/18C07D239/26C07D239/70C07D307/77C07D333/76C07D491/048C07C2603/94C09K2211/1044C09K2211/1014C09K2211/1029C09K2211/1074C09K2211/1092C09K2211/1088H10K85/623H10K85/626H10K85/633H10K85/631H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K85/657H10K85/40H10K50/11H10K50/15H10K50/16
Inventor XIA, CHUANJUN
Owner BEIJING SUMMER SPROUT TECH CO LTD
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